{
 "cells": [
  {
   "cell_type": "markdown",
   "id": "842d8436",
   "metadata": {},
   "source": [
    "-----"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "8d394739",
   "metadata": {},
   "source": [
    "* 2022/10/11/week08\n",
    "* Python 课堂笔记"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "847685fa",
   "metadata": {},
   "source": [
    "----"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "329828cb",
   "metadata": {},
   "source": [
    "# 本周内容"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "b33510ce",
   "metadata": {},
   "source": [
    "> 0. 代码的注释\n",
    "> 1. 用户输入\n",
    "> 2. 格式化输入"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "8100037a",
   "metadata": {},
   "source": [
    "##  0. 代码的注释"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "022ef091",
   "metadata": {},
   "source": [
    "> 1. #, 一般写在代码块的最上边，或者每一行代码的最后，用于代码思路的记录。"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "id": "ae9db124",
   "metadata": {},
   "outputs": [],
   "source": [
    "#Author:LAQ"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "d5bb79fd",
   "metadata": {},
   "source": [
    "> 2. '''注释内容'''，一般是注释代码块"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "id": "16db28b0",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "三个引号注释代码块内容，不运行\n"
     ]
    }
   ],
   "source": [
    "'''\n",
    "world = \"bottles\"\n",
    "print(world)\n",
    "'''\n",
    "print(\"三个引号注释代码块内容，不运行\")"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "e0166dff",
   "metadata": {},
   "source": [
    "# 1.用户输入"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "ca9bfc9d",
   "metadata": {},
   "source": [
    "> 1. input()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "14b6e502",
   "metadata": {},
   "outputs": [],
   "source": [
    "# 登录系统\n",
    "username = input(\"账号:\")\n",
    "password = input(\"密码:\")\n",
    "\n",
    "print(username)\n",
    "print(passward)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "b0f43005",
   "metadata": {},
   "outputs": [],
   "source": [
    "# 登录系统 完善\n",
    "# 假设我们数据库有用户信息： 账号： admin, 密码， 123456\n",
    "userl = \"admin\"\n",
    "password1 = \"123456\"\n",
    "\n",
    "username = input(\"账号:\")\n",
    "password = input(\"密码:\")\n",
    "\n",
    "# 情景一： 账号不存在或密码不正确\n",
    "if user == username and password1 == password:\n",
    "    print(\"欢迎\"+user1+\"登录！\" )\n",
    "# 情景二： 账号不存在或密码不正确\n",
    "else:\n",
    "    print(\"账号不存在或者密码不正确！\")"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "33acf9e6",
   "metadata": {},
   "source": [
    "## 2.格式化输出"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "afaca391",
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "ab06dd32",
   "metadata": {},
   "outputs": [],
   "source": [
    "# 用户注册系统\n",
    "name = input(\"姓名：\")\n",
    "age = input(\"年龄：\")\n",
    "job = input(\"工作：\")\n",
    "salary = input(\"收入：\")\n",
    "reg = input(\"地区；\")\n",
    "\n",
    "info = '''------INFO OF'''+ name +'''------'''+'''\n",
    "年龄：'''+age+'''\n",
    "工作：'''+job+'''\n",
    "收入：'''+salary+'''\n",
    "地区：'''+reg+'''\n",
    "\n",
    "print(info)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "8e1f9c06",
   "metadata": {},
   "outputs": [],
   "source": [
    "# 用户注册系统 方法二：占位符\n",
    "name = input(\"姓名：\")\n",
    "age = input(\"年龄：\")\n",
    "job = input(\"工作：\")\n",
    "salary = input(\"收入：\")\n",
    "reg = input(\"地区；\")\n",
    "\n",
    "info = '''------INFO OF %s ------\n",
    "年龄： %s\n",
    "工作： %s\n",
    "收入： %s\n",
    "地区： %s'''%(name,age,job,salary,reg)\n",
    "print(info)\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "72dff338",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "请输入您的余额20\n",
      "开始购物\n",
      "1 ['巧克力蛋糕', 10]\n",
      "2 ['抹茶蛋糕', 11]\n",
      "3 ['水果奶油蛋糕', 12]\n",
      "请输入您所需要的商品编号，或者按 r 退出购物1\n",
      "您要购买的是 巧克力蛋糕\n",
      "您已购买巧克力蛋糕,您的余额为10\n",
      "1 ['巧克力蛋糕', 10]\n",
      "2 ['抹茶蛋糕', 11]\n",
      "3 ['水果奶油蛋糕', 12]\n",
      "请输入您所需要的商品编号，或者按 r 退出购物3\n",
      "您要购买的是 水果奶油蛋糕\n",
      "您的余额不足，购买失败\n",
      "您现在的余额为:10\n",
      "1 ['巧克力蛋糕', 10]\n",
      "2 ['抹茶蛋糕', 11]\n",
      "3 ['水果奶油蛋糕', 12]\n",
      "请输入您所需要的商品编号，或者按 r 退出购物r\n",
      "已退出购物，您的余额为10\n",
      "以下是您所购买的商品['巧克力蛋糕']\n"
     ]
    }
   ],
   "source": [
    "## 输入余额，余额格式错误处理\n",
    "while True:\n",
    "    balance_old = input(\"请输入您的余额\")\n",
    "    if not balance_old.isdigit():   # .isdigit，判断余额是否为数字\n",
    "        print(\"输入格式错误，请重新输入\")\n",
    "    else:\n",
    "        print(\"开始购物\")\n",
    "        balance_old = int(balance_old)\n",
    "        break\n",
    "balance_new = balance_old\n",
    "balance_new = int(balance_new)\n",
    "\n",
    "    \n",
    "## 顾客选择商品\n",
    "\n",
    "# 商品列表\n",
    "product_list = [\n",
    "[\"巧克力蛋糕\",10],    \n",
    "[\"抹茶蛋糕\",11],\n",
    "[\"水果奶油蛋糕\",12]    \n",
    "]\n",
    "\n",
    "shopping_list = []\n",
    "\n",
    "\n",
    "while True:\n",
    "    # 生成带序号的商品列表  enumerate,枚举\n",
    "    for index, item in enumerate(product_list):\n",
    "        print(index + 1, item)\n",
    "\n",
    "    enter = input(\"请输入您所需要的商品编号，或者按 r 退出购物\")\n",
    "    if enter.isdigit():\n",
    "        enter = int(enter)\n",
    "\n",
    "        if enter <= len(product_list) and enter > 0:\n",
    "            print(\"您要购买的是\",product_list[enter - 1][0])\n",
    "            if balance_new >= product_list[enter - 1][1]:\n",
    "                shopping_list.append(product_list[enter - 1][0])\n",
    "                balance_new -= product_list[enter - 1][1]\n",
    "                print(\"您已购买\" + product_list[enter - 1][0] + \",您的余额为\" + str(balance_new))\n",
    "            else:\n",
    "                print (\"您的余额不足，购买失败\")\n",
    "                print(\"您现在的余额为:\" + str(balance_new))\n",
    "\n",
    "\n",
    "        else:\n",
    "            print(\"您所输入的编号为错误编号，请重新输入\")\n",
    "\n",
    "    elif enter == \"r\":\n",
    "        if balance_new == balance_old:\n",
    "            print(\"您没有购买任何商品，您的余额为\" + str(balance_new))\n",
    "        else:\n",
    "            print(\"已退出购物，您的余额为\" + str(balance_new))\n",
    "            print(\"以下是您所购买的商品\" + str(shopping_list))\n",
    "        break    "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "b34f2784",
   "metadata": {},
   "outputs": [],
   "source": []
  }
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